We appreciate your updated information. We are reviewing with Manulife and will respond early next week with any further updates.
That's an email I got last week, on Friday, what value does it have? The lady emailed me back to alert me I'm going to get another email, which is fine she's informing me she got the information, and to wait. The email was deleted, since it serves no purpose outside of her confirming she got my information, which is information that would be covered by PIPEDA (which would be the Canadian HIPAA equivalent).
You brought up something else, those stupid chains where 100 people reply, and you have all the nonsense threads in the email. Why keep that nonsense? I know people who will get furious if you remove it. What value does it hold? None! There is no value to it, just remove it from every email, you already have the previous discourse, it's all preserved.
On a final note, I have dealt with company lawyers, and lawyers in general, they don't want you to keep insane email caches. They only want you to save legally relevant or at least legally questionable information. If you give a lawyer 100 GB of email to sort through, you're going to have it thrown back at you, with a demand to prune it. My old boss, the 100 GB email guy, use to include the company lawyer on every email in the CC header. The number of times as a % he said back in a paraphrased form: "Not legally relevant", was hilarious, over 95% of the time. At another company, the lawyer had the same problem, people would CC her, and she kept insisting it was pointless, since the vast majority of communication had no legal value. She stored her email in a Vera Crypt volume, that she had to open every morning, and lock every evening. She's the one who told me to PGP sign every email if it was legally relevant, so It has a chain of ownership.
Put your best foot forward. Or just call in and say you're sick.